查询词典 power driven

The fluid mixture process has been studied under power-free driven technology through designs of chip structure and numerical analysis. Then the fluidity, fluid velocity and reaction sufficiency of immunoreaction has been studied based on this chip platform. The results have been validated and the sensitivity has been effectively improved.

通过芯片结构设计和数值分析，研究了在无动力气压驱动方式下的液体混合，在此基础上对芯片平台上的免疫反应的流动性、流速控制和反应充分性进行研究，设计实验对结果进行验证，有效提高了检测的灵敏性。

The car will be driven by a 2.0 liter turbo charged powerplant feeding power to all four wheels.

汽车将被2.0公升涡轮被充电的发电厂哺养的力量驾驶到所有四个轮子。

In this topic, the dynamic analysis methods for piezoelectric vibrator are studied systematically based on the theoretical model, FEM numerical experimentation and FEM governing equation for given compound-mode vibrator, and some valuable conclusions are obtained. The main work accomplished is summarized as follows: 1.Elaborate the main modeling methods for piezoelectric vibrator and the significance and necessity to study the dynamic characteristics of piezoelectric vibrator which emphasize the urgency of this paper. 2.Take the bending deformation induced by piezoelectric ceramic as example, the energy transfer mechanism of electric energy to mechanical energy are analyzed; the motion and force transfer mechanism are analyzed for the longitudinal-bending vibrator. 3.Based on mode assumption and Hamilton principle, the coupling model of piezoelectric vibrator of linear USM is built; moreover, the equivalent circuit model is obtained and a coupling equation represents the relation between electric parameters and mechanical parameters is derived which provides foundation to match the vibrator and driving circuit. 4.Combine the constitutive equation of piezoelectric ceramic with elastic-dynamical equation, geometric equation in force field and the Maxwell equation in electric field and the corresponding boundary condition equation, the FEM control equation for piezoelectric vibrator of USM to solve dynamic electro-mechanical coupling field is established by employing the principle of virtual displacement. The equation lays the foundation to study the non-linear constitutive equation of piezoelectric ceramic driven by high-power. 5.Define the dynamic indexes of characteristic of vibrator and carry out variable parameters simulation by calculating the model parameters and the electric characteristics of vibrator are simulated according to the equivalent circuit model. By numerical experimentation, the working mode of vibration of vibrator and the shock excitation results of the working frequency band which provides the mode frequency to realize bimodal are analyzed. Detailed calculation of the electro-mechanical coupling field parameters is made by programming the FEM control equation.

本课题从理论模型、有限元数值试验、有限元控制模型等方面以复合振动模式振子为例对超声电机压电振子的动力学特性及其分析方法进行了全面系统地研究，得出了许多有价值的结论，主要概括如下： 1、阐述了目前针对超声电机压电振子的主要建模方法，对压电振子动态特性的研究意义和必要性进行了论述，突出了本文研究内容的迫切性； 2、以压电陶瓷诱发弹性体发生弯曲变形为例，分析了压电陶瓷通过诱发应变来实现机电能量转换的机理；对基于纵弯模式的压电振子的运动及动力传递机理进行了分析； 3、基于模态假定，利用分析动力学的Hamilton原理，建立了面向直线超声电机压电振子的机电耦合动力学模型，并据此建立了压电振子的等效电路模型，导出了电参量与动力学特性参量的耦合方程，为压电振子与驱动电路的匹配提供了依据； 4、从压电陶瓷的本构方程出发，综合力场的弹性动力学方程、几何方程、电场的麦克斯韦方程以及相应的边界条件方程，采用虚位移原理，建立了压电振子动态问题机电耦合场求解的有限元控制方程，为研究其大功率驱动下的非线性本构模型奠定了基础； 5、界定压电振子的动力学特性指标，对压电振子的机电耦合动力学模型参数进行计算及变参数仿真；依据等效电路模型，对压电振子的电学特性进行了仿真分析；通过有限元数值实验，对压电振子工作模态附近的模态振型及工作频率附近的频段进行了激振效果分析，找出了实现模态简并的激振频率；利用有限元控制方程，通过编程计算，对压电振子的力电耦合场参数进行了详细计算，得出了一些有价值的结论。

The proposed cycle combines the organic Rankine cycle and the ejector refrigeration cycle, producing power as well as refrigeration simultaneously. The ejector is driven by the exhausts from the turbine.

该系统将有机物朗肯循环与喷射式制冷循环相结合，利用透平排气驱动喷射器工作，同时实现发电和制冷的功能。

And with 2.8 MPa working pressure, 2500 W heating power, 7 meters resonance tube length, the thermoacoustically driven pulse tube cooler has reached 80.9 K refrigeration temperature at 45 Hz.

系统在谐振直路总长度为7米，工作压力为2.7MPa，加热功率为2350W，工作频率为45Hz时得到80.9K的最低制冷温度。

Entry level power is from a 1.6 (87kW/147Nm) which Chery's says will return 5.1l/100km if driven sedately, which is a mite hard to believe.

入门级的动力是一台1.6升（87kW/147Nm）引擎，奇瑞说如果平稳驾驶可以达到百公里5.1升的油耗，这有点让人难以置信。

Second, we view an animal as a self-mover—as having the power to go from place to place of its own accord and to intervene bodily in its environment. And third, we take an animal to be driven to satisfy basic biological needs.

首先，是感知意识到的概念：我们认为动物和周围至少部分东西进行感知接触；其次，我们视动物为一个self-mover『自动者』，即在其环境中有能力自愿地从一个地方到另一个地方和支配自己的身体；三，我们把动物视为受其基础生物需要驱使。

Power may be expressed as shaft horsepower,input horsepower to motor terminals, if motor driven,theoretical horsepower computed by thermodynamic methods.

功率可用传动轴所消耗的马力来表示，输入功率理论上可通过热力学方法计算。

The valve is driven directly by a large strake multilayer piezoelectric stack, its displacement actuates the power cascade spool after amplification by a lever mechanism.

该阀采用大行程的压电叠堆作为驱动元件，经杠杆放大后的位移直接驱动功率级滑阀。

Having driven both flavors of H3 as well as the H2 SUT, the H3T sounds like it might just be the pick of the litter, offering the best balance of power, comfort, and practicality to go with its off-road credentials.

具有驱动两种口味的H3 ，以及为氢气作答， h3t ，好像它可能只是最火爆的垃圾箱内，为顾客提供最佳的权力平衡性，舒适性和现实性，以配合它不占用道路全权证书。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。